Try the Notepad# plugin just go to settings then click preferences then click misc then disable Clickable link settings to get rid of crash on scroll hope that helps.

Here is the plugin info if you need it

General plugin (proper new line handling, comments, indenting etc)

Implemented so far:

• Proper new line inside CommentDo//DocBlock for C, C++, Javascript, PHP


• Proper new line for # comment in Ruby


• Indent after opening curly brace for C-like languages, CSS
  
  and proper indenting for closing curly brace


• Delete current line keeping the column


• Undo closed tab


• Switching tabs with ALT + LEFT/RIGHT


• Wrap selection with Open/Close tag


• Url encode/decode selection


• Autoclose embeded script tags for ruby and php (<% |
  
• Column ruler


• Indent after opened tag - XML, HTML and PHP


• Close last open tag


• Autonumbering inside CommentDoc/DocBlock and # comment


• Indent after instruction for Ruby - module|class|def|do|if|else|elsif|private


• Match end indentation for Ruby


• Autocomplete CommentDoc/DocBlock keywords


• Peek CSS hex colors


• Scroll past end of file


• Convert leading TABS to Spaces and reverse


• Paste indented


• Double click edit tag
  Author: jvdanilo
  Source: https://github.com/jvdanilo/NotepadSharp
  Homepage: https://github.com/jvdanilo/NotepadSharp